Reversing-gear.



P. DAIMLER. RBVERSING GEAR.

APPLICATION FILED MAY 14, 1906.

QM MH/l 77 v fill M l I PATEN ED APR19. 1907.

UNITED STATns ATENT oFFIoE.

PAUL manna; 0F UNTERTURKHEIM, GERMANY.

REVERSlNG-GEAR.

Specification of Letters-Bateut.

Patented April 9, 907;

- Application filed Kay 14. 1906. e. 816,776.

such a device is desired.

The invention, however, is more particularly designed and adapted for use in connection with boats, wherein it is designed to be interposed in operative relation'between the 1 engine or other driving shaft and the propeller-shaft.

The invention consists in part in the provision of a mechanism of this character so designed and constructedas to be automatically held in reverse drivingpositions by the v mechan sm proper, by means of'which the coupling members p -'and g are made. to coaction of the screw-propeller.

The invention further consists of a reversing mechanism wherein the support for the reversing partsis non-rotatabl mounted.

The invention will be more hilly described in connection with the accompanying drawing and will be more particular pointed out and ascertained-in and by t e appended stricted to this particular use.

' claims. v The accompanyingdrawing shows 8.11011- zontal section of a reversing evice embodymgjfie main features of my'invention.

' 0 characters of reference des gnate sirn1-' larparts'throughout the drawing. I

As shown the device of the invention will a driving andpropeller shaft of a boat, althou h-it will be be described in its relation to ObVIOUS that the invention nee not be re- Referring to the drawings designates a driving or engine shaft provided with a flywheel or driving member 1), which, as shown,

. is so constructed as to constitute one of the elements of a clutch and will be hereinafter referred toss a clutch-wheel, It may be noted that the provision of afly-wheel which serves to perform its function and also that of a clutch element-is not an essential'feature of the invention, as the fly-wheel might be embodied in a separate-structure. Asshown, the driving member I) isprovided With friction-surfaces m and n, desirably formed on the inner periphery-of said wheel. Said friction-surfaces are also preferably conical and other as to resent .0 s' friction-sur-. faces. In or er to facili mg andassembling of a driving member of this nature, the same may be made in two parts, and, as shown, the. the friction-surface n. The dnvmg'member b or clutch-wheel cooperates, preferably, with, two clutch elements in the performance of its in the form of coupl" and 9, having coni difi surfaces 1) and q,

operate with the friction-surfaces m. and. n and whereby such cooperation is transmitted to the propeller-shaft to rotate the same in structure.

movably mounted, preferablyin a horizonta horizontal supports 6, the latter consistiniof a part of the amework of the vessel or ei specially provided, as the case may be.

he reversmgegear proper consists of four meshing bevel ear-wheels The wheelsf an iy are provided with-trunnions 7 and 8, mounted ln'bearings 9 and 10, forming a part of or be' secured to the casing the shaft c and injsuch a manner as to cause the axes of the wheelsf and g to coincide with the axis of saidshaft c. Said wheels f and 9 said trunnions being engagedgby thrustbolts '13 and.14,' the whereby the wheels f removable part1) carries cmdicates the propeller-shaft which, as

plane, upon bolts 5. Said bolts are mounted in brackets 5, which latter are anchored to.

are-so arranged the onewith respect to the tate the contraction vfunction, said elements being herein shown or clutch members 1)- j adapted to engage the frictional surfaces mg and non-. hesh'aft'c r h designates a support which in the present construction is shown in the form of a casing 9 f, g, d, and 7c.

he. said wheels and g are located 'in alined relation'with respect to each other and are transversely disposed with respect to are also provided with trunnions 3 and 4, which are journaled in bearings 11 and 12, provided in the casing h, the outer ends of" tter pzeviding means andwvbe heldin 8s opposite directions, consists of the following I a a bushing 22 is inter osed between said hu prescribed mesh relation with the wheels d and Ir. Said wheel k is non- ';otatably and non-slidably mounted on the shaft 0 by means of a key andfeather is and is provided 5 with an elongated hub 7, journaled in'a bearing in the casing h and-freely rotatable '.therein. The hub 7 is provided with an annular recess 16, forming shoulders 17 and 18, adapted to engage the opposite ends of the 0 bearing 15, this operative engagement of the= 15 formed an. annular recess 19, adapted ,to be engaged by the ring 20 of a reversing-lever 21.- The wheel (1 is provided with a hub 11',

which is recessed at (P, formin shoulders d and d. A bearing h isformecf in the casing zo'h and serves to receive the'hub d, the shoul-' ders d and d engaging the opposite ends of said bearing, and thereby opcratively connecting the wheel (Z with the casing 11, sothatf shiftin movement of the casing transmitted throug i the reversing-lever is communicated to said wheel d. It will be obvious that by means of the foregoing construction thecasing h sustains the strain incident to shifting movement of the parts, thereby relieving c the bevel gear-wheels of all stress and strain due to such shifting movement, the said gearwheelsbeing freeto perform their pecial functions. Q

As shown, "the gear-wheel d is connected 3 5 with the coupling member g, the ,twoparts being formed integral. The hub 21, to which i t nation, a drlving shaft, "aamember' therefor I both the gear-wheel d and coupling member q are secured, as stated, is slidably and rptatably mounted on the shaft c, and preferabl and shaft. A suita le antifriction 'bearing 23, which may, if desired, be made to act yieldingly, is interposed between the coup- 1 ng-members p and g to retain the same in 4 5 a prescribed relation with respect'to each other. v I

If it is desired to propel the boat forwardly, the shifting lever 21 is thrust in the direction of the arrow 1, thereby engagin the coupling member p with the friction-sur ace m. v This forward-shifting movement of the. coupling member 'is accompanied bya corresponding movement on the part'of the coupling mem ber q away from the surface n and also the support of easing h and the wheels f, g, s'd,

and k. As before stated, this fOIWMd-Shlfl'r ing movement of the casing h and-the gearwheels is effected by power transmitted through the shifting lever 21 to the hub -7 and finally through the casing h. In this adjustment of the device the displacing action of the propeller causes a forward thrust on the shaft 0, thereby servingToniaintam the coupling member q in engagement with the 55 friction-surface m without the-assistance of shaft and gears and means penses with the cost of construction and installation of such auxiliary securing devices, but also with the time involved-in manipulating them. v 1

When a reverse or rearward-propulsion of the vessel or boat is desired, the lever 21- is sh fted rearwardl or in the direction ofthe arrow 2 and, actmg through the hub 7 and easing h, shifts all of the arts rearwardly, bringing the coupling mem er q into engag'e ment wlth the friction-surface n. While the direction of rotation of the driving member b is at all times the same, reverse rotation of the shaft 0 is effected by eng'a ement of the couplin mer'nberqwith the su acen throu h the met ium of the wheels f, g, d, and is; before stated, the coupling member is loosely mounted on the shaft 0, and w en wheelsfand gand thenceto wheel 1:, operat mg the latter in areverse direction to the' direction of rotation of the; coupling member q. When the propeller-wheel is operated to propel the=boat.rearwardly,'there is a rearward thrust on the shaft c, or, in other words,

a thrust in an opposite du-ection'to that' imarted tojshaft Tc when the vessel is propelled I 1 orwardly', said rearward thrust serving to maintain the coupling'memberl'fgi in tight 7 -eng:* ement 'with thefricticn-surface t,

provided with oppositely-facing or conical=frictionsurfaces, co u pl members' adapted-to be alternately engitgi withsaid' surfaces, a driven shaft on w mainin'g-member beinglooselymounted on oneof said coupling members is rigidly mounted, the re-- said driven shaft, a gear' rigidlyconnec'td with said loosely-mounted eou hng member, said gear being loose on'said gear rigidly mounted on said'driven shaft,-

ven shift, a j

and intermediatergearsmeshing with, said 'ri id and loose ears to effect rotation there- 0 an opposite irections, a displaceable cas mg supporting said couplin" members, driven %or displac said casing to effect alternate englagernento said coupling members with said 2. Areversing-gear comprising in combination,'a drivin .member provided with inclined or ,conica' friction-surfaces, coupling .members adapted to be alternately thrust into engagement with said surfaces, a driven shaft to w ch one of said coupling members, is-rigidly connected, the other of said mems lotion-surfaces.

bers being loosely mounted on said drivenshaft, a gear loo'sely mounted on said driven shaft and rigidly connected with loosel mounted coupling member, a gear rigid y j mounted on said driven shaft, intermediate gears meshing with said rigid andkloosely mountedgears to effect rotation ereof in opposite irections and means for shifting said parts to effect alternate enga ement of said coupling members with ;sai frictionsurfaces whereby the direction rotation on}; said driven'shaft may be reversed v 3. A reversing-gear comprisin -.31 drivin' member provided with oppositely-disposed friction-surfaces, and a driven member, friction elements for said driven member'adaptr ed to be alternately thrust into engagemen with said friction-surfaces, said driven member being adaptedto operate a lo1d impart ing thrusts to said driven member in accordance with the direction of operation-of the load, whereby said friction elements are held inoperative relation with said frictionsurfaces. a v

4;. A reversing-gear comprisin a-drivin member provided with opposite {-dispose friction-surfaces and adapted to erotated in .a"singl'e direction, a driven member, friction elements for said driven member adapted to be alternately thrust into engagementwith said friction-surfaces, said driven member being longitridinally movable and adapted to operate a load imparting thrusts to said driven member in accordance with the.

direction of o eration of the load,whereby said friction e ements are held in operativerelation with said friction surfaces, and means o'peratively connecting one of sai friction elements with said driven member wherebythe latter is driven in a reverse direc-' tion when one of said elements is in operative relation with said driving member. 5. -A reversing-gearcomprisin a dri member provided with opposite y-dispose(l e rotate friction-surfaces and adapted to atively connecting onejof sai in a single directien, a driven member, friction elements for said driv'en member adapted to be alternately thrustinto engagement with'said friction-surfaces, said driven memher being longitudinally movable and adapted to operate a load imparting thrusts to said "driven member in accordance with the direction of o eration of the load, whereby'saidfriction e ements are held in operative reler tion with said friction-surfaces means operd friction elents with said driven member whereby the latter is driven'in a reverse direction when one of said elements is in operative relation with said driving member, and mechanism for shifting said means and elements to effect alternate engagement of the latter with said adapted to carry a oad imparting thrusts to said driven member in accordancefviith the direction of operation of said load, said fricd that said thrust serves to maintain the same inoperative engagement. 4 In testimony w ereof I hereunto afiix my signature in presence of two witnesses.

-- PAUL DAIMLER-4 Witnesses: I

Roman-r Unmm),

Erms'r Enrsmunm tion-surfaces and elements being arranged so 

